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US 6,270,442 B1Granted
Multi-function speed converter
AssigneeSynkinetics, Inc.
InventorsFrank A. Folino, Faruk H. Bursal, Michael P. Cunningham, James E. Maslow
Life of this patent
Estimating the term…
Abstract
Methods and apparatus for translating angular velocity and rotary motive force of an input drive to angular velocity and rotary motive force of an output drive, by providing a pair of devices rotatable at, relative to or about a common axis, and translating means for transmitting angular velocity and rotary motive force of a first of the devices to angular velocity and rotary motive force of a second of the devices.
Claims15
A low-profile rotary drive apparatus for translating a rotary input to a driven rotary output, the apparatus comprising
- a) a first stage having:
- a drive member for coupling to a rotary source and having a first stage rotary driven member,
- a transmission member using first stage interacting elements for transmitting angular velocity and rotary motive force of said drive member to angular velocity and rotary motive force of said driven member,
- two of said members forming a conjugate pair of devices,
- b) a second stage having:
- second stage rotary drive member driven by said first stage rotary driven member and second stage rotary driven member driven by said second stage rotary drive member and a transmission member using second stage interacting elements for transmitting rotary drive force of said second stage rotary drive member to rotary force of said second stage rotary driven member,
- two of said second stage members forming a conjugate pair of devices,
- c) all of said members mounted coaxially, motion of a first one of said devices being translated to motion of a second one of the devices by said interacting elements,
- d) said system having a top platform part driven by said second stage rotary driven member and a bottom support part, said top part and bottom part mounted together to permit relative rotation therebetween, and
- e) various ones of said parts and members defining an internal cavity for receipt of said rotary drive source, said rotary drive source rotating said top part relative to said bottom part via rotation of said first stage rotary drive member.
7 more elements
Speed conversion apparatus comprising
- a housing,
- a first stage having a drive member for being rotated and having a drive cam,
- driven member for being rotary driven and having a driven cam, and
- a conversion device including a reaction frame having a fixed length slot and a reciprocating interacting member for conversion of rotation of the drive cam to rotation of the driven cam, the interacting member, while reciprocating in the slot, interacting the two cams, whereby the driven member can be driven by the drive member and the speed of the driven member does not equal the speed of the drive member when the drive member is rotated, and
- a second stage having a second stage drive member for being rotated and having a drive cam, and having a driven member for being rotary driven and having a driven cam, and a second stage conversion device including a second stage reaction frame which is formed on said first stage reaction frame, said second stage reaction frame having a fixed length slot and a member for conversion of rotation of said second stage drive cam to rotation of said second stage driven cam, the second stage interacting member, while reciprocating in the slot, interacting the two second stage cams, whereby the second stage driven member can be driven by the second stage drive member and the speed of the said second stage driven member does not equal the speed of the second stage drive member when the second stage drive member is rotated by said first stage driven member,
- wherein said first stage rotary driven member and said second stage rotary drive member are formed on a common part,
- further comprising an internal frameless motor having a rotor coupled to and rotating said first stage drive member for driving said first stage driven member.
4 more elements
Dependencies are inferred from the claim text.